This is a close-up of the previous image. The pattern of developer moving away from the center of the wafer shows that the visible structures are actually raised above the surface of the wafer.
(Photo by Dr. Aranyosi.)
This is a close-up of the previous image. The pattern of developer moving away from the center of the wafer shows that the visible structures are actually raised above the surface of the wafer.
(Photo by Dr. Aranyosi.)